I still dont think its going to be as bad as OG stoneskin release. 

Fix Loki so that he actually uses his A2 on himself or on allies if they drop below like 30% HP should calculate more worth to attack or heal in some capacity.

Separately my brother just started playing and after replaying beginning should be able to differentiate on multibattle to sell or keep common vs uncommon gear. If I get uncommon with a speed stat I Would sometimes want to keep that early on.

You guys should update the Campaign. Add bonus areas for each of the new factions added since the beginning. Doesn't need to be a lot but would be cool to see areas for sylvan watchers, shadowkin, dwarves.

Or maybe add Dark Campaign where you are fighting from perspective of the corrupted. Could also add some fusion champs in sylvan watchers/ dwarves and what not.

could add 2 piece sets like assassin set 10% crit rate 10% crit damage,

 numbing set 4 piece chance to place a small Dec res would be useful to help debuffers

leveling set 10% chance to remove buff on attack

detox set 4 piece 30% chance to cleanse a debuff every turn

longevity 4 piece set

10% atk 10% hp 10% def 20 res

hunter set 4 piece

10% atk 10% crit rate 10% Crit dmg 20 acc

marker set 4 piece

60 acc chance to place small weaken

offense set

10% atk 5/8% crit

defense set

10% def 5/8% crit

health set

10% hp 5/8% crit 

everybody tries to crit cap their champs anyways

just some ideas but I personally use the defense set still even on atk champs just to make them more useable would use a 2 piece def

platoon leaders sacrifice uncommon champs to give bonus to all uncommon and common champs might make some of them more useable armiger is still a fan fave could make some of them viable at 60 make content that requires the use of common and uncommon champs

like real life platoons it's not all the top brass captains corner one rare and 4 uncommon or common champs could be an entire arena mode

could add simple passives to common /uncommon champs

shield (Champ will block 10% aoe dmg)

team player(inc damage on ally atk)

vampiric nature(5% lifesteal inherent to this champion) could put on any of the hound creature

poisonous nature(chance to place small poison on each hit)(could put on some archers)

Opportunist(chance to join in on any atk)

also fix pack master sh'yek so I can use the uncommon and common hounds as well as glade wolf

could add an entire Category of beasts of war tbh separate from skinwalkers

on event dungeons give a second menu so I can decide what accessories to keep,

allow chances for up to rare gear on regular campaign stages and up to epic on boss stages, reduce energy cost on nightmare difficulty nobody farms nightmare.

that's me ranting but putting some ideas out there